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Protein Analysis

Authored by Robert Mason

Biology

University

Used 4+ times

Protein Analysis
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17 questions

Show all answers

1.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What does SDS-PAGE stand for?

Sodium Dodecyl Sulphate-Polyacrylamide Gel Electrophoresis

Single-Stranded DNA Polymerase Gel Electrophoresis

Serum-Derived Stem-Platelet Aggregation Electrophoresis

Standard Differential Staining-Photoelectric Gel Electrophoresis

2.

MULTIPLE SELECT QUESTION

45 sec • 1 pt

In SDS-PAGE, what is the role of SDS?

Breaks disulphide bonds

Imparts a negative charge

It denatures proteins

Enhances protein movement through the gel

3.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is the purpose of polyacrylamide in SDS-PAGE?

Provides structural support for proteins

To separate proteins by size

To facilitate protein denaturation

To enhance protein staining

4.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is the primary factor that determines the migration of proteins ins SDS-PAGE

Charge

Size

Shape

Hydrophobicity

5.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

How is the molecular weight of proteins determined in SDS-PAGE?

By the intensity of staining

By comparing the sample to known molecular weight markers

Calculations using the gel percentage, voltage, and time

Luck

6.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is the purpose of the stacking gel in SDS-PAGE?

To provide a platform for sample loading

To separate proteins based on size

To concentrate proteins in a narrow band so they enter the resolving gel at the same time

To enhance protein denaturation

7.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is the purpose of the reducing agent in SDS-PAGE sample preparation

To give the protein a net negative charge

To improve protein solubility

To reduce disulphide bonds

To improve protein transfer

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